I have had my mattress for about a week now. Honestly I was a bit skeptical of it at first. I have sleep apnea as well as having had back surgery. My fiancee suffers from fibromyalgia. After the first couple of nights, a lot of my aches and pains went away. My fiance is sleeping more comfortably than she has in the last 3 years. We ordered the 10 inch mattress and have decided that when we need a new one, we will be ordering from Zinus. Ordering was simple, delivery was fast, and our sleep improves every night. Thank you for saving our sleep.